实验研究了CaO及与CO对N2O、NO的催化还原作用。结果表明CaO/CO对N2O的作用表现在可以降低N2O的初始分解温度和提高N2O的转化率；只有在CO的共同作用下CaO可以提高NO的转化率。以此为基础，分析了不同规模的流化床燃烧不同挥发份含量的煤时加入CaO后影响N2O/NO排放的不同机理
A laboratory study of reduction of N2O and NO over CaO under fluidizedbed combustion (FBC) conditions is reported. The initial decompositiontemperature of N2O is reduced to 1050 K from 1150 K in the presence of CaO,while the temperature is 950 K together with CO. The conversions ofN2O are enhanced from 10% to 32% and 70% respectively at 1123 K. However,CaO has only a small effect on the reduction of NO. The results from thepresent work and from the literatures are used to discuss how limestoneaddition influences the emissions of N2O/NO in FBC. The results indicatethat mechanisms of CaO/CO on N2O/NO are relative to the volatile contentof the fuel and the scale of the fluidized bed
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